Instances of appraisal right.
Section 81
SEC. 81. Instances of appraisal right.—Any stockholder of a corporation shall have the right to dissent and demand payment of the fair value of his shares in the following instances: In case any amendment to the articles of incorporation has the effect of changing or restricting the rights of any stockholder or class of shares, or of authorizing preferences in any respect superior to those of outstanding shares of any class, or of extending or shortening the term of corporate existence; In case of sale, lease, exchange, transfer, mortgage, pledge or other disposition of all or substantially all of the corporate property and assets as provided in this Code; and In case of merger or consolidation. (n)